Highly efficient and clean LCV
Integration, testing and validation on Dynometer set up of a IVECO demonstrator vehicle and Integration into a demonstrator vehicle. The objectives for IVECO are
- To develop and validate a highly efficient and optimised engine concept for LCVs to achieve greater than 5% CO2 (WLTP) improvement through a combination of CAE simulation predictions, engine testing and demonstrator vehicle validation
- LCV demonstrator to achieve 50% of EU6 RDE emissions and 80% reduction of PN including 10-23 nm particles
Update December 2018:
A report was released detailing the size, number and chemical composition of the particles emitted by the baseline exhaust after-treatment system of the Iveco Daily F1C, 3litre, 4-cylinder, engine. Measurements were performed at steady state conditions of the WLTC cycle in Warm-Up, Full Load, Filter Loading and Regeneration operating conditions.
The report contains information about the tests performed and the measurements of sub 23mm diesel particles. It includes, in-cylinder combustion analysis, soot size function distribution and particle number measurements. The source, timing and number of sub 23nm diesel particle emissions from raw exhaust up to the exit of the exhaust pipe, downstream of the standard EATS have been assessed. This data will be the baseline for the determination of performance of the new EATS system for demo vehicle.
The DPF system has shown good performance in the operating conditions tested. In particular, DPF efficiency greater than 96% in the reduction of the sub 23nm particles has been measured at full load across the speed range, and greater than 99% 40s after the start of the engine in the warm-up period at 2000rpm and 50% accelerator pedal position. During DPF regeneration a reduction of up to 88% of the particles < 23nm is recorded. Urea injection was found to affect the physical properties of the particles at the exit of the SCR. The chemical analysis showed that the particles consist mainly of agglomerated solid carbonaceous material and volatile organic compounds. Solid carbon originates during combustion; it is oxidized into the cylinder and residue is exhausted in the form of solid agglomerates. A tiny fraction of the fuel, and atomized and evaporated lube oil, appear as volatile. The soluble organic fraction contains mainly polycyclic aromatic hydrocarbons; while the insoluble part of the particles presented several elements originating in the lubricating oil, fuel additives and wear of piston rings and engine components.